Carbureter.



PATLNTBD APR. 1:1, 190e.

C. STUTB. ARBURETBR.

PPLmMwH FILED M125, 1905.

3 SHEETS-SHEET ,3A

NVENTR harlesme, v

c; BY 4 ce? GMW.

at ATTOBN UNITED STATES.

PATENT OFFICE.

so. einem.

VSpeoiication of Letters Patent.

CARBUHETER.

Patented April 1'?, 1906i Appennini and umh 25, i965. 'enfin Nn. 251.927;

To all whom it may concerns Be it known that I, CHARLES Sfru'rn, a citi zen of the United States, residing at Newark,

lo it appertains to make and use the same, ref

erenee beingihad to the accompanying draw ings,and to characters of reference marked thereon, which form a partof this specification. -v f yThis invention has reference generally to improvements in cerbureters for gasengines; and the present invention has for its principai objects to Yprovide a novel and simplyconstrncted apparatus or device in' which e perfect adniixtnre of the gasolene with air to produce the explosive gas which is tobei sx1 ploded inthe cylinder of the gas-engine. l

The invention hns for its further object to rovide in addition to the carbnreting ehemer or cylinder a gasolene reservoir or chem- 'ber provided with an autoniaticall'f-opersting nie-ans for controlling the supp y of the gasolene within thesaicl reservoir by 'opening and closing an inlet-valve as the level ofthe 3o finidjvithin the reservoir becomes lowered or 1s raised, substantially as andior theJpnr-L poses hereinafter more fully specified.

A further object of this invention is to provide a novel means or device foi-'priming or originally filling the gasolene reservoir or chamber with the fluid, and, furthermore, this invention has for its 'Fortherfin'xportant object a novel arrangement of gas-inlet valve and back-fire valve connected with the gesdnct oll the carburetor to prevent the burning gas or back-fire from entering the earbureting 'rhamber or cylinder and'causing en explosion ci the mixed gas therein, the arrangement of the haelt-tire valve being'sueh that the burning gas 'or back-'fire will escape through the seid valve into the 4open nir.

The invention has for its further objects to provide a novel erranffernent and construetion-of parte which will prevent vaverheeting and henee'avcideny possibility of en explo sion of the gaseiene, and Q furthermore, to pro-l vide e nevel and separable arrangement el the various parts whereby the parte can be quickly unscrewed one from the other to get Aat the valves and other perte of the device for clenningpurposes or for repairs.

Other objects of this invention not at this time more particularly mentioned` will be clearly evident from the'following detailed descri tion of the saine.

Wit the various objects of my present invention in View the same consists in the novel carburetor for ges-engines hereinafter more fully setl forth; and, furthermore, this invention consists inthe novel arrangements and combinations of the various devlces and parte ais-'well as in the details of the con struction oi the same, all of which will be resentll,r more fully described and then iinally embodied in the clauses of the claim which are appended to and which form an essentiel part of this specification.

The invention is clearliT accompanying drawinvs in which i Figure l is e centrali iongitniiinai vertical Section ofv a carburetor embodying the principles-inf the present invention, and Fig. 2 is e transverse vertical 'section of the same at Yright angles' to the plane of section repre sented in Fig. 1 when lool-:ing lin the direction ofthe arrow X in seid Fi ll `F1g-3 1s a horizental. section ofthe car ureter, said section being taken on line 3 3 in said-Fig. 1 lookingVV in the direction ofthe verrori' Y; an Fig; 4 is a similar seciionolthe device, Said section' being teiten on line 4 '4 in said Fig. 1 of the drawings with the Figf 1s a"view of t 1e carburetor, )artl'y in transverse vertical section 'and ar y in elelration, saici-`view being inode o an enlarged scale and representing the parts in their relative position during the act of prirning orA illingrtheesolene reservoir or tank with gras-V Fig. ,6 is a detail sectional repreolene; an sentation of certain partsof the device, showing the sition. Fig'. 7 isa detailvertical section of the spray-nozzle, the same bein made on an enlarged scale to more clearly s sow the general arrangement im d cmistructinn 0L the parts of the same.

Similar characters of reference are emplugged in allot thesaid above-described views to indicate corresponding parts. Y

Referring now to the several figures of the drawings, the reference character indicates the complete cerbnreter; The sanie'consists, essentieliyVo n main shell or body 2, which preorahlvis of cylindrical configuration and is 1 an open top having a screw-thread 3 upon its inner surface, sin@stantieily-` as es-inlet valve "omitted,

gasolene-inlet valve in its closed po- `llustreted in the ITO ` over necessary.

V lower open portion 10 of said cylinr In the closed bottom 5 of the said shell or body 2 is a depressed part 6, having its lowest part at one sid(` in said bottom for thc collection ol any sediment or water in said lowest part. An opening 7 and an outlet-cock 8 is provided at that point for draining or drawing oli' such sediment, water, or other mat ter from the interior of the shellor body 2 when Within the interior of said shell or body 2 and Ypreferably inte rally connected with the central portion of t 1c bottom 5 of said shell or body 2 is an upwardlyextending hollow cylindrical.` bod ,9. 'lhe lyrical body 9 projects below the outer surface of thi.` closed bottom of the main shell or body 2, the said projecting portion being provided with a ca 11,hav,1ng an opening 12 therein and whic is em Aloyed for securing a screen 13 over the said ower o n portion 10 of the cylindrical 'body 9, su stantiall as illustrated. Inthis mannerascreene air intake or feed is. provided. The upper and openended portion 14 of the'said cylindrical body 9 extends, preferably, above the plane of the marginal edge which surrounds the upper opening of the main body or shell 2 the said open-ended portion 14 being provided with an internal screw-thread 15', substantially as shown. Screwed into the said open-ended portion `141s a s ider-shaped valve-seat 16., raving a central earing 17, in vwhich is movably arranged the spindle or stern 18 of a valve-disk 19. The said disk 19 is normally closed upon the valve-seat 16`by the action of a spring 20, arranged u onthe valve-stem' 18 preferably as shown.l ithin the central portion ofthe said cylindrical body 9 is a nozzie-shaped member 21, having a contracted end provided withan opem'n 22 for the uroses to be presently more fully descri ed.

eferring now to Figs. 1 and 4 of the drawings, it will be seen that the said main shell or body 2 is niade at one side with an enlarged pmt 23, having a screw-threaded duct 24 for the reception of a screw-threaded stem 25, which is provided with aneedle-point 26, arranged to open and close a passage-way through an arrangement of ducts 27, 28, and 29. The upper end of the said stem 25 is provided with a graduated linger-piece 30, and .'51 is an index secured to the side of said enlarged part 23 and extending upwardl in contact with the marginal edge of sai lingerpiece 30. Thcsaid duct 29 isformed ina art .32, constituting a part of the-bottom o the main shell or body 2 and also forming a portion of and extending into the lower part of the cylindrical bodylt').\ Upon its free end the said part 32 is mad'e with ahollowmember 53 at right angles, to the said free end of the part 32. This said member 33 acts as a suport for and is constructed to receive the lbwer portieri of a tube or member 34, having a' shoulder 35 and providedwiththc ducts 'of a handle 55 or other actuatin device.

36 and 37 and annular receiving part 38, all in comnnruication with the duct 29 in the part 32, whereby a complete passage for the fluid gasolenc from within the said main body or shell 2 is established through the ducts 27 28 29 with thc annular receiving part 3S and the ducts 36 and 37 of the tube or member 34. The upper end portion of this tube or member 34 projects through the openinfr 22 und slightly above the contracted end ofthe said nozzle-shaped member 2l, the said tube or member 34 boing made with Ya closed and rounded tip end 3i), provided or formed with an annular depression 4l), and a laterall cxtending duct 4l, which establishes a i irect conuuunication for the gasolene from the duct 37 with the said annular depression 40, as clearly illustrated in Figs. 1 2, and 7 of the drawings and as will bcfullyuuderstomlfrom an inspection of said figures of the drawings.

Movably'arranged within the interior of the main body or shell 2 is a float 4, being preferably made from sheet metal and being iollow, and the said oat having a central opening, as 42, whereby it is concentric with the cylindrical ortionfl and is movable upon the outer cylin ricalsurfacc of said portion 9, as will be clearly evident from an inspection of the several figures of the drawings. Suitably screwed upon the up er open portion of the said main body or she l 2, as indicated in the drawings, is a cover 43, which is made with a Vcentrally-disposed opening 44, into which the said upper and open-ended portion 14 of the cylindrical portionJis snugly fitted,

but is removable therefrom when the said cover 43 is unscrewed from the main body or shell 2. The 'said opening 44 in the cover 43 is surrounded Aby an upwardl extendi v flan e 45, and connected. with t e same an 'Y esta lishing a communication with the throat formed b said flange 45 is a laterally-extending tub ar body 46, which is hollow and is open at both ends. One of said ends, as 47, has an internal screw-thread and is madeV to receive the end of a )ipe or other suitably-constructed means or conducting'the gaseous mixture into the c linder of a gasengine with which the car ureter is to be uscd. The opposite open end 48 of said tubular body 47 is also rovided with an internal screw-thread into wliich is screwed a spidershapcd valve-seat 49, having a central bearing 50, in which ismovably arranged the spindle or stem 5l. of a valve-disk 52.' The said valve-disk 52 is normally closed by the action of a spring 53, which is arranged upon the valve-stem 51, referably in the manner shown. At a suita )le point in the said tubularbody 46, between thel throat formed by 4the annular flange 45 and the end 47, isa

IOC

throttle-disk 54, which can be set by means 1n a suitably-disposed opening in t e said cover 42 is a bushing 56, having a central opening u pouqlii ailing-othv 'lignt 4., with its ST nml n svrow-Lluvnelmi portion 5.8: upon 'winmx in Sorewexl Lire cnil of n gnsulomj-cong vering pipe This wipe iefpmvieiefiwith n v1i-vf}-soa`1t6(l, und Gl imiirnes n vulvorprovided with n stein ISL?, whirl: extends into :nul through the-control opening 57 in' the busliing 56. 'llzjs vnve is operated in the luan- 'ner to be said valve-stein jwiinol, oilst-ruetthe 'said central opening 5? it, isinede of n. smaller crosssectlon tluln that, of the said opening .57, being ypfrelerably of mretnngulur or square cross-section, .whereby of the gnolenetlirougli the onening .57 are provided, es will beel'early understood." Dialnetrically. o p'ositc 'the opening provided with the bnsiixing. 56 is another opening in {l1ich-is2u7-blushing 63',` which. ie .provided with a. vcentral opening (Mend Fart. 65k Screwed u 4on th cepfi '.Iinrviug a. and inov'a ,illsgqrmnged in said-bearing Iendin the centriil o Y pin 67,' 'fheljer end of which only fidedwii'itlx'eP end v(9rxie1-d bsliing 63.,"8 su ngA normallyiineth *thez Said bs't'nntially 'es iilusbratedfih Fig. 2 of thedrawin'gs.f A spring l-encircles fthe seid-pin; 67 on, that portion =within the cap i betweolitkenppor emLi the bushing-63 angl iifcoifiar or nin; 'Non seid p'in 67,' tlrejenris of the'siringiieingfoonnetzteil in such man# ner .po t le minions partsthtthe normal feuri-Y vriey of the coilsi the siring is bo proiluee an upwarcl-moronentfthe Ijinlits'cllur or. mit, 70 limitingr ite xipivard moveinent as will 'he clearlyt evident. u A i 'j i Ifronrnnl inspection ofV Fig-s; 4 imd- 5 it xviii he limited i itsopnositefeillee 'with suitable reeiving depreeislinsflu 7.2; into which are prung nr aregotllerwispl secu'reil 'tlieongi Portions' 73 'of u lcircular 'and rsuitiiblyrefurvcd notxiating'flevice or c'riniilc 74, sprin f gneLal. Thie device fon ermie .surroom s the'upper 'portion of tho cylindrcxil Bort' 9i1' nrl iios n bme tile'uppereurlface of-Lhe ont 1pts opposite `ortion 75 being cominci.- cd li'yiuoans'rif-n lin 7 6 or :my other suitable "lnoansviih Elie lower ondpol'tion' off-the as elfeazjly Villiieintimi.' Pro'-v rnngcilor formoilu Von the opposite sind im-V ilorsiles of thosnii iugmmtinp; denier-.for orarIle-74, :is uli-urli' represented in Figs. l, 5, and 6 of tlufilmwinge. "'l`lius'itlwiii lie seen that the saiiiltnetunling dowjice orcrnfdlo, 74 lis Sus one por-v tion pivonl'llyuoonnested with the bushin'g' and im o-ppiite portion i witli Ptluv val.v o-ste m 6210 Therefore when the gaspl snif-l mein liil'v or shell i'votall connected ,t'hein et-ialve 61. eno-chamber of the mg against the projections orvenlargoments pssngcs for the flv.

e 'Sonny-1threlidedv eax-ing in ite'upp'erw'e'ml,Y p'eiing iljof the Bushing 63 isa.

"preferably mafie from' 2 is full' the float xl'will be near -Lhe t'op`withfits upper surface press-K presentlyvdesoribed, und; that, Line,

iloxiered.

"Shines n Y in Figa? Vt ie inlet-pifn 59.

,ply of gnsoienels ai juletvelvelin the manner during the for shell 2 is constantly the mennerj'ust `stated en V iiiV Fig'. T, and w Yihrough the o ienng 77,'115 indicated in Fig. e of the drawings, and the result, will he Limit, thovvalvo-stcm 62 is forced upn'nriiiy, thereby seating thevalve (il upon tlm sont tii'l in the pipo 59, es shown. .'llxe su piy'ol' the gestuelle is thereby shut 7o oil' nnliltheru is no (langer ronroverlling he huilyor Sheil '.2 with the fmsolene.y When tige cerbu'reter is,in iiscrw-it itlle gas-engine, the gnsolonensit-s mixed wish the eir'in the cyiindrioalpnrt i) is proportionately 'removed 75 yfrom the giis'oiene-cliamber of tliek body or Shell 2, whereby the Hoatrisorrspondingly The pivotal movement' of -the said actuating rlcviro or crndlc 74 thereupon a.s-

position similur to tliatfrepresvnted 8o and 5, and tliefvalve 61 fin consevence is removed f-rimi the seat 60 .Within ilnluefvliutely" a; rshsu'plminteil into the gia-Seleneclmmber-o thc'boily o r shell QLKWl'lereiti'y tlie 85 ievei `of the gil-Selene' is again reisei end the Ypipe-59.v closed. F this consumption of Lhhelgfinihs in iheengine thefgnsolene-olielnber ofi-hei b 'oi Ylitt-:pt fll bynu'jnt- 9o ieally' opening and 'cloSiu thezinletLvsil'i/"e in inainmin'indtliereby a uniform'and constant, supply ou gaso- Iene at the nozzle end of thetubefl. v

The arrangementl `ol t`.l1i-A .'nd portion or tif'r 9 5 i the tulie 34 is such that Lliegasolenejvi l form in beads in the depressioni, as shown hen a suction is produced al, the cmi 47'of the tubular iiember 46 bythe iiston of the' engixwthe Yalfne-diskl!) is foo riziseil from its s'cnt enel the voire-disk 52 all t'he more tightly closed upon its seu't.f-Tl1e air from the opening 12 thereupon rushes 22 oi the nozzle-shaped 'partl past tl e heedsrof geeolene upon-the 105 'groove 40,911'rying snidbemls away Lo be repliioeil. byllol-liors and producing e perfect mixture ol' the gnsoiene and oirif;

' In priming or starting .it becomes neessary to havenV goed :supply of gasolene until i xo thc .engine is running, in which ense the priming-pin fi? .is irqiressed by the operator to the position indioeted in Fig. 5 ofthe d i'awliigg thus depressing the lion-t 4 below tiicrlcrel o' tlicrgnsolene in thebody or shell 2` and'kepz i5 ing;` Ythe valve 61 in its opened reletionljgls soon as the engine is running freely the pressure is Miken froniizho priming-pin?, wi'iioli is returned to iis normal initial position, emi the remaining devices nml parls of the o ar- :zo lmreter wili'ke oai-e of tlwmselves.A VFrom an inspectionV of Fig. l itwill be seen ,t,l1at

Aoluring the bock pressure or back-firing attl1ef\ Ytime of an explosl on of the gas the Valve-disk 19in eiosed down upon its sent, and the volvo i z5 disk 52 is forced from its seat, with the result the?J the backre will escupe from the tubular member 46 into the ein Consequentlyv` there can be no danger of an explosion of the mixed air and gasolene in the cylindrical part. 13o

` :having its upper end portion arranged in the 4 opeiung' of said coverand the lower and open ferm-si with@ senoniynisp fend 65 cylindrical body, a gasol'ene-coiiveying duct open bottom. and a cono-s aped air-xio 9 'nor any possibility ofthe asolcne taki v fire in the g n vided llngfoi-med with 1a `ceiitrallydis s'ed open-.

end lo h cl vlaterallyetendingtubulai". bod upon and conngcted with said ange, said literallyex- A open end of said cylindrical bod .attachment at one end of said will close lsaid 'inletfvalve relief-valve, substantially as andfor thepui'-4 M poss'etforth.. i

having its upper4 portion made open and pro'- 4valves being arranged so fthat t e bach-fire f asole'ne-chamber of the body or shell '2 an 'there can *be no possible danger from ai iex losion of the gasolene in said bodyorshe 2.

From the foregoing description ofmy presvbeA clearly Vseen that I gas-enines and a evice is the result Wliichis abso utely safe. 1 y

.Icliii1n`.'` y h 1. A c'arbureter comp havlngits upper portion made open and provvith a screw-thre a cover screwed dow-n over said open portion, said 'cover benigni sylindricn bday wiihmsai main body pgrtion of' sa'idsylindrical body extend- `bottom of said main y,- a screenin said.

lower and open end lag llangeoii oo ver, said lla e n 4surro'u mgtheo gin-said cover, a a

te body and cover being both reinov ably u n=thesaid main body-,a centrally-guided' et-valve in the upper and i a. means of aterallysx1' and a relief-valve at the other literally-'extending body, said so that the lback-fire and will open said tendin body end o said l 2. A 'miniem comprising` s nain bdayviderl with'a screw-thread, a cover screwed down over said open portion, sa'id cover being os'edopening, a cylindrical body within said main body, having its upper end portion arranged. in 4the opening of said cover and the lower and open rtion o f said, c lindrieal body extendlow the clo bottom of said'main y, a screen in said lower and open end-por-A tion of said cylindrical body, an upwardly extending flange on said cover, said flange surrounding the opening -insaid cover, and a laterally-extending tubular bod?v upon and connected with said flange, said aterally-exA tending body `.and cover beinv removably arranged'iponthe said main y, a centrally-gu ed inlet-valve in the upper and l open end o'f said cylindrical body a means of attachment at one end 'of said laterally-extending body and 'a relief-valve at the other and, of sind laterally-mmm body siti will close said inlet-valve and will open said relief-valve, a cone-shaped air-nozzle in said A V laterally-extendingjduct am nular bead-forming groove, substantially as memberbei'ng o en at its'o shell Aa Boat in said bod or shell for automatically einen loading and extending into the lower portion of said cylindrical body, a hollow i'f-uifiviig member connected atright angles with the fret-.end ol' said ,convcyingducn and a lube extending `vcrticnlhy frrin'i `slaiil ri-i-civing nicnibcrand liavi'o its upper end poriioii projecting throughy Aand slightlyV nliovc thev opening ol' said conc-shaped no zzls-.iid sortical tube having a closed-tip*provided with and for the purposes setYl'ort-h.

3. A carburetor, comprising a main body or shell adapted to contain a supply ol' gast lenc a removable cox'cr on said main bei l shell an inlet-valve connected with said n i v.' r, a float in said boil y or shell for automsiiir-idly controlling said iplet-valvc, a c 'linder wil-ihr said body or shell in which t e gasoil-ric is rixed with air, .a laterally-extending and h= il low member connected with said remowmo cover into which `the gasis drawn for com v .ance' to the cyl'nder one' gasfengine, said l posite ends, ouio.said ends bei provide lwith ameans ol' connection for attachment to the gasfenginc,

a means of communication between said cyl- 'inderfand hollow member provided with 'an inletvalve, and' n centrally guided outlet valvefin the other open end of said hollow member, said valves being arranged so that .the backdirewill close, said inletvalve and will open said outletLvalve, substantially as and for the purposes set forth.-

4. 'A carburetrfcomprisinga'ma'n body or shell adapted to contain a supply of asolene 4a removable cover on said main y or an inlet-valve connected withsaid cover,

controlling said in eli-valve, a c linder within saidv body Vor, .shell in whicli t e gasolelie is mixed with air, a'laterallyxtending and hollow member conncclczl with said removable cover into which the gas is drawn lor convey- .ance to' the cylinder ofv a gas-engine, said Amember being open at its o posite ends-r one of said ends being provid with a means of connection foi attachment to the gas-en ine,

ameans of communicatie:` bei-weengsai cylinder and hollow member provided with an inletvalve, and a centrally guided outlet valve in the other. open end of said hollow member, said valves being arranged s o that the back-fire will'close. said inletvalve and will Vopen said outlet-valve, and a throttle in said hollow.rnenibensubstantially as and for the purposes set fo h.

5. A carburetei', comprising or shell adapted to contaia supply ofaso-l Iene,` a removable cover on aid main b y or shell an inlet-val vo connected with said cover, a float in said bod or shell' for automatically controllingsaidi etvalve,a c linder within said body or shell, lsaid `c lin er havin ali e, a

nu outer am 3o gasolenc-conYcying tube in 35 and nimma lfor conveyin gesolene-convying tube in the lower ortion of said evlinder, it mrtion of said tu e projecting through und .slightly'nbove t-losaid air-nozzle for producing e n'iixture of air and 5 gasolene in the upper part of said cylinder,

and means for conveying n:isolierte from the mam body or shell into snail tube, a. laterali extending und hollow member into which l, te.

gas is drawn for conveyance to the cylinder m of e gas-cngine, Said member being open at its opposite ends, one ofsalid ends being pre vided with e means of connection for attach ment to the g: -engne,'a meim of communi cation' between seid cylinder and hollow 15 member provided with an inlet-valve, und o centrally-guided l outlet-valve 4inthe oihei' open end of seid hollo` member, seid valve-s being arranged so that the buck-lire will einer said inlet-valve and will open said outletzo valve, Substantially:mand for the ptn-posee set forth. Y Y* 6` A carburetor, conxprlsmg u mum' body or shell adapted tomontnn n snpply'of gresolone, n. removablecover onsiid malin bod): or

25 shell un inlet-valveronnecledwiii #aid cover;

a float in -midbody or shellY for automatically controlling .sst'id inlctvaivc, :l Cylinder within said body or shell, mid cylinder having im fopen bottom, und :i rone-slmpegi air-nozzle, n

n. iowir ortion ol' sind cylinder, e portion ol' said tube projecting through ond slightly above the said airnozzlc l'or producing o mixture of nir nud gesolenv in the upper pertof lsaid cylinder, g unsolene from the 11min body or shell into sait tube, a laterallyextending and hollow member `connected with said removable cover into which the as,

7,. In it carburetor, the combination, With an open bottomed cylinder, and `n foneilmped air-nozzle 1n sind eylmder, of a gasolvnc-vonveying ductl lending and extending` intoI tliclower portion of saidvoylindcr, n. hol- .inw receiving member connected :it rightJ an' vglee with the free end ol sind conveying-duct,

:und n tube 'extend ing vertically from seid receiving member und having its upper end port ion projecting through and slightly above the openimr of said eone-sbeped nozzle, seid yertienl tu'be having n rinsed tip provided with u laterally-extending duct and un outer annular bead-forming groove, substantially :is and for the purposes set. forth.'

ln testimony that l chain: the invention set forth above I have hereunto set my hund this 23d day of Muri-h, 190.3.

` CHARLES SlU'lE.

W i t ncsees i FREDK. C. FRAENTZEL, GEO. D. RICHARDS. 

